Oberursel has a reputation for being incredibly safe for solo female travelers. The crime rate is low, and locals are generally helpful and friendly towards tourists. The public transportation system is robust and reliable, making getting around the city both easy and secure. Additionally, there are plenty of police presence and well-lit streets which should help in ensuring your safety. It's recommended to always follow general travel safety procedures though, like locking up your belongings, knowing the safe neighborhoods, and keeping someone aware of your whereabouts.